CN106396529A - Damping sound-insulating spraying mortar - Google Patents
Damping sound-insulating spraying mortar Download PDFInfo
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- CN106396529A CN106396529A CN201510464615.4A CN201510464615A CN106396529A CN 106396529 A CN106396529 A CN 106396529A CN 201510464615 A CN201510464615 A CN 201510464615A CN 106396529 A CN106396529 A CN 106396529A
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- mortar
- sound insulation
- damping sound
- spraying mortar
- floor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a damping sound-insulating spraying mortar. The damping sound-insulating spraying mortar is a bagged damping sound-insulating dry-blend spraying mortar prepared through mixing of an inorganic cementitious material, a filling material, an organic cementitious material and an additive under stirring; and the motor is stirred on site and uniformly sprayed on a base layer by using a spray coater. The motor comprises, by weight, 25 to 35 parts of cement, 5 to 15 parts of fly ash, 25 to 50 parts of fine and light aggregate, 10 to 40 parts of rubber powder, 0.6 to 5 parts of redispersible powder, 0.1 to 0.3 part of methylcellulose ether, 0.02 to 0.1 part of short fiber and 0.01 to 0.1 part of a water reducer. The damping sound-insulating spraying mortar can improve the sound reduction index of a wall and a ceiling when sprayed on the wall and the ceiling, and can replace a leveling layer of a floor and improve the impact sound reduction index of the floor when sprayed on the floor; and the damping sound-insulating spraying mortar can totally cover a variety of special-shape structures to form an effective sound-insulating layer and can be constructed in a variety of complex environments with narrow space.
Description
Technical field
The present invention relates to a kind of noise control technique field, the damping sound insulation spraying mortar of architectural exterior-protecting construction sound insulation standard especially can be improved.
Background technology
With the fast development of the modern industry, noise, vibration pollution are increasingly severe, various noises, the continuous formation in vibration pollution source and extension, dim are formed as social effects of pollution.And the progress of society, the quality requirement more and more higher to living environment for the people, all the more sensitive to noise jamming, it is reluctant to stand the interference of noise pollution increasingly, even query as existing control standard.
Fender member and traditional handicraft are in the form of brick mix structure, and body of wall uses the sound insulation property of solid clay brick preferable.But, due to the reform of construction material, disable solid clay brick now, simultaneously because the artificial and irreversible rising of traditional material cost, the advantage with low cost of conventional construction method is progressively lost.How to tackle this stern challenge, engineering progressively is promoted to reach using function, the use of the new material of material and installation cost can be reduced again.The various novel wallboard composition with light advantage easy to install are all taken on engineering practice.According to quality law, novel wallboard composition there is also the not enough shortcoming of oise insulation factor simultaneously.Simultaneously as increasing of ambient noise source, how to improve air-borne sound and the strike note oise insulation factor of civil buildings building enclosure, become the important indicator ensureing civil buildings acoustic environment.Particularly in recent years light-duty roof system in various heavy constructions（Station, airport building, gymnasium, commercial center etc.）In be widely adopted, isolation air-borne sound and the light-duty roof system of strike note two aspect itself all be extremely difficult to requirement.
At present, it is to use sound insulating material based on the oise insulation factor of raising building enclosure, sound insulating material is installed on building enclosure, the hole that unavoidably there is overlap joint between sound insulating material in installation process leads to reduce the oise insulation factor of sound insulating structure.Because increasingly relatively buying of traditional resource exhausts and its non-renewable, progressively successive rises to lead to traditional material cost, and in addition relatively in short supply with human resources, the advantage with low cost of traditional material and its construction method is just progressively lost.How to tackle this stern challenge, engineering is promoted construction and installation are convenient, processability is good, the excellent ep-type material of cost performance and its mounting process.It is to reach digestion cost improvement factor, control cost, short noise, vibration control engineering for client's offer Functionality, quality and appealing design, low cost, construction time.
Dry-mixed mortar is generally hydraulic cement mixed mortar, refer to that aggregate, inorganic coagulation material and additive of drying screening process etc. carry out a kind of graininess or the powdery of physical mixed by a certain percentage, building site is transported to form packed or in bulk, add water the material that can be used directly after mixing and stirring.The continuous improvement requiring with construction quality, environmental requirement and civilized construction, the shortcoming of job site mixing mortar and limitation are more and more prominent, and dry-mixed mortar to have the quality of production guaranteed, workability with superior, dry-mixed mortar is the material of factory's premixing, use need only be added into water and uniformly stirred in building site, and airborne dust is few, more environmentally friendly.And put it over and popularize.
Spraying coating process all directly using raw material, is sprayed at the construction field (site), eliminates product manufacturing procedure, and the short shaping of process cycle is fast, compares the product through processing, and construction cost and cost of transportation all have larger advantage.Compared with smearing with Traditional Man, constructed using spraying equipment, efficient mechanical automated construction operation, total efficiency of construction is significantly improved.Sprayed product can direct spraying on the media such as steel construction, concrete, can be arbitrarily complicated（Special-shaped）Even structure or pipeline, suspender member, close quarters. the very unattainable space of workmen, all can light spraying application.The shape of spray mo(u)lding is consistent with base material body form, forms one layer of fine and close protective layer outside seamless, all can effectively cover in defects such as the layering at original interface, hole, cracks in pairs.
Content of the invention
Complicated, relatively costly, long in time limit in order to overcome the shortcomings of existing sound insulating structure working procedure, the present invention provides a kind of damping sound insulation spraying mortar, and site operation is simple and convenient, cheap it is easy to promote.
The technical solution adopted for the present invention to solve the technical problems is：A kind of damping sound insulation spraying mortar and its construction method, spraying mortar is dry mixed by the packed damping sound insulation that inorganic coagulation material, filler, organic cementing material, additive stirring mix, Site, is equably sprayed in basic unit using flush coater, by weight score ratio：Cement 25～35, flyash 10～15, thin lightweight aggregate 25～50, rubber powder 15～40, redispersable latex powder 1～6, methyl cellulose ether 0.1～0.3, chopped fiber 0.05～0.1, water reducer 0.01～0.1, starch ether 0～0.1, air entraining agent 0.01～0.1.
Described cement is the portland cement of label 32.5；Described flyash be combusting coal fines boiler smoke in collect, not ground, fineness is the fine ash of 350～400 mesh；Described lightweight aggregate system particle diameter is 0.5～1mm, bulk density<Any one in the floating bead of 1000kg/m3, expanded and vitrified small ball, float stone, furnace bottom ash or two kinds of combinations；Described rubber powder is the tyre rubber powder of fineness 30～50 mesh being prepared from by the reclaimed rubber that junked tire produces；Described chopped fiber system length is the polypropylene fibre superbhort fiber of 5-10 mm.Flyash can reduce cement consumption, improves the workability of mortar, improve the later strength of damping sound insulating layer, improve molding effect.Floating bead or expanded and vitrified small ball.Lightweight aggregate concrete have lightweight, high-strength, insulation, fire resisting, shock resistance good the features such as, it is possible to decrease the density of damping sound insulation spraying mortar, improve decentralization, the uniformity and the spraying height of mortar jet, improve operating efficiency efficiency.And deformation performance is good, and elastic modelling quantity is relatively low, shrinks in general and creeps and be also larger, has good absorption and dispersion to vibratory impulse.Redispersable latex powder can improve the adhesive strength of damping sound insulation spraying mortar and building enclosure basic unit, and methyl cellulose ether can improve denseness and the workability of damping sound insulation spraying mortar, reduces the blocking of spraying pipeline.Fineness 30～50 mesh of rubber powder, can improve rubber powder in the suspension of slip and distributing homogeneity, both can increase the elasticity of damping sound insulation spraying mortar, improve its damping sound insulation anti-vibration performance, meanwhile, cheap.Rubber powder is coated on the weatherability that can improve rubber powder in closed-cell foam concrete, improves service life.Polypropylene fibre superbhort fiber can increase the toughness of damping sound insulating layer, reduces fragility, improves deformation force and the anti-impact force of damping sound insulation spraying mortar.Starch ether is remarkably improved the denseness of mortar, improves the mobility of mortar, reduces the frictional resistance of mortar and pipeline.Air entraining agent the mobility of mortar can improve pumpability, because the introducing of micro-bubble can reduce after solidification damping sound insulation mortar heat conductivity coefficient, reduces dry density.
Damping sound insulation spraying mortar forms damping elastomer layer in substrate surface.When sound wave reaches, the energy absorption being subject to or compression are stored by the damping material in damping sound insulation spraying mortar and elastomeric material, so that sound wave is obstructed or are changed into heat energy.
Described damping sound insulation spraying mortar is added water and is stirred using mixer, proceeds in conveyor hopper and is pumped, mortar and compressed air are sent into spray gun, form mortar jet before nozzle, thickness as required to be equably sprayed in basic unit.
The weight fraction of described damping sound insulation spraying mortar ratio is according to specifically being adjusted using position, oise insulation factor, intensity requirement, execution conditions, after mortar solidification, dry density is 780kg/m～1000kg/m, thermal conductivity factor 0.140W/ (m K)～0.20W/ (m K), compression strength 1.0MPa～1.5MPa.
Specific embodiment
Described damping sound insulation spraying mortar can be completely covered and form effective sound insulating layer on all kinds of Complex Different Shape Mechanical Builds, can complete various small space complex environment constructions.When described damping sound insulation spraying mortar is as metope sound insulating layer, should rub with the hands in fact through levelling, complete floated finish.When described damping sound insulation spraying mortar is as ceiling sound insulating layer, finish coat should be set.In the metope of building enclosure and the damping sound insulation spraying mortar of ceiling spraying 20mm, oise insulation factor 20dB can be increased（A）.
When described damping sound insulation spraying mortar is as floor sound insulating layer, floor screed-coat can be substituted, coating thickness 30mm, setting≤20mmPVC poling pipeline in floor basic unit can directly be covered, but, the slurry of spraying should exceed pipeline 5mm, and flattens mortar using darby, re-lays floor covering after mortar hardening.In 100mm thickness reinforced concrete floor laying 30mm damping sound insulation screed, sound pressure level L is hit in the standardization of Site Detection weighted ' nT.w=62dB.Meet《House vibration damping standard》JGJ11-82 strike note sound insulation class one-level sound reduction index≤65（dB）Standard.
At the construction field (site), after the loose material of all impact adhesive properties such as the dust of removing architectural exterior-protecting construction substrate surface, grease, particle, fill pre- vibration damping dry-mixed mortar and add water and stirred using mixer, proceed in conveyor hopper and pumped, spray gun sent into by slurry pump and air compressor mortar and compressed air, form mortar jet before nozzle, thickness as required to be equably sprayed in basic unit.Spray in the basic unit of any component thing, can individually be filled in wall cavity again, form tight sound partiting system.In acoustic engineering, it is the oise insulation factor deficiency in former building enclosure first, for this, need to take measures to improve its oise insulation factor, and spray the construction technology of sound insulating layer, its oise insulation factor of raising, such as steel construction color steel building can be improved on the basis of former building enclosure, and there is more perforate poling, gap, the building enclosure of leak.
General spraying mortar, can meet the defects such as the layering to original interface, hole, crack and all can effectively cover.But, due to main material series cement and the sand of spraying mortar use, close with the texture material of architectural exterior-protecting construction, form thickening of homogeneous material.Its sound insulation characteristics is essentially identical with the characteristic of the homogeneous solid wall of equivalent depth, does not form extra sound insulation.And the damping material due to damping sound insulation spraying mortar and elastomeric material are different from the texture material of building enclosure by being subject to, form two-layer compound sound insulating structure.Double-deck different materials can avoid this two-layer identical coincidence frequency, thus forming new sound field medium, sound wave constantly passes in and out sound field medium, can produce and reflect again, and oise insulation factor can be made to be further enhanced.Meanwhile, the presence of restriction damping layer can suppress the vibration of sound insulationg board, and sound insulation frequency is wider, and the barrier property of low-frequency sound wave can be improved further.
When described damping sound insulation spraying mortar is as metope sound insulating layer, directly can smear as decorative mortar.When described damping sound insulation spraying mortar is as floor sound insulating layer, damping sound insulation spraying mortar is added water and is stirred using mixer, directly can be laid in the way of laying screed-coat, and flatten mortar using darby.
The invention has the beneficial effects as follows：
1）Spraying coating process uses premixing dry-mixed mortar, is sprayed at the construction field (site), eliminates product manufacturing procedure, and the short shaping of process cycle is fast, compares the product through processing, and construction cost and cost of transportation all have larger advantage；
2）Range extensively, can effectively improve building enclosure oise insulation factor, not increase built-loading, not affect the indoor useful space；
3）, weatherability good with original structure basic unit associativity is good, and service life is consistent with building mortar；
4）Thermal conductivity factor 0.140W/ (m the K)～0.20W/ (m K) of damping sound insulation screed, has incubation and thermal insulation function simultaneously；
5）It is the incombustible material of fire protection requirement that damping sound insulation screed meets；
6）Damping sound insulation screed（28d）Compression strength 1.0MPa～1.5MPa, meets the intensity requirement of laying hard floor surface layer；
7）In 100mm thickness reinforced concrete floor laying 30mm damping sound insulation screed, sound pressure level L is clashed in the standardization of Site Detection weighted ' nT.w=62dB.Meet《House vibration damping standard》JGJ11-82 strike note sound insulation class one-level sound reduction index≤65（dB）Standard.
It should be appreciated that without departing from the scope of the present invention, multiple changes can be made to above-described embodiment, and be applied to other occasions.All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of damping sound insulation spraying mortar, is dry mixed spraying mortar, Site by the packed damping sound insulation that inorganic coagulation material, filler, organic cementing material, additive stirring mix, is equably sprayed in basic unit using flush coater, it is characterized in that：Score ratio by weight：Cement 25～35, flyash 10～15, thin lightweight aggregate 25～50, rubber powder 15～40, redispersable latex powder 1～6, methyl cellulose ether 0.1～0.3, chopped fiber 0.05～0.1, water reducer 0.01～0.1, starch ether 0～0.1, air entraining agent 0.01～0.1.
2. damping sound insulation spraying mortar according to claim 1, is characterized in that：Described cement is the portland cement of label 32.5；Described flyash be combusting coal fines boiler smoke in collect II grade of flyash；Described lightweight aggregate system particle diameter is 0.5～1mm, bulk density<Any one in the floating bead of 1000kg/m, expanded and vitrified small ball, float stone, furnace bottom ash or two kinds of combinations；Described rubber powder is the tyre rubber powder of fineness 30～50 mesh being prepared from by the reclaimed rubber that junked tire produces；Described chopped fiber system length is the polypropylene fibre superbhort fiber of 5-10 mm.
3. damping sound insulation spraying mortar according to claim 1, is characterized in that：Described damping sound insulation spraying mortar is added water and is stirred using mixer, proceeds in conveyor hopper and is pumped, mortar and compressed air are sent into spray gun, form mortar jet before nozzle, thickness as required to be equably sprayed in basic unit.
4. damping sound insulation spraying mortar according to claim 1, is characterized in that：The weight fraction of described damping sound insulation spraying mortar ratio is according to specifically being adjusted using position, oise insulation factor, intensity requirement, execution conditions, after mortar solidification, dry density is 780kg/m～1000kg/m, thermal conductivity factor 0.140W/ (m K)～0.20W/ (m K), compression strength 1.0MPa～1.5MPa.
5. damping sound insulation spraying mortar according to claim 1, is characterized in that：Described damping sound insulation spraying mortar is completely covered and forms effective sound insulating layer on all kinds of Complex Different Shape Mechanical Builds, can complete various small space complex environment constructions；When described damping sound insulation spraying mortar is as metope sound insulating layer, should rub with the hands in fact through levelling, complete floated finish；When described damping sound insulation spraying mortar is as ceiling sound insulating layer, finish coat should be set.
6. damping sound insulation spraying mortar according to claim 1, is characterized in that：When described damping sound insulation spraying mortar is as floor sound insulating layer, floor screed-coat can be substituted, coating thickness 30mm, setting≤20mmPVC poling pipeline in floor basic unit can directly be covered, but, the slurry of spraying should exceed pipeline 5mm, flatten mortar using darby simultaneously, re-lay floor covering after mortar solidification.
7. damping sound insulation spraying mortar according to claim 1, is characterized in that：When described damping sound insulation spraying mortar is as metope sound insulating layer, directly can smear as decorative mortar；When described damping sound insulation spraying mortar is as floor sound insulating layer, damping sound insulation spraying mortar is added water and is stirred using mixer, directly can be laid in the way of laying screed-coat, and flatten mortar using darby.
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| CN201510464615.4A CN106396529A (en) | 2015-08-03 | 2015-08-03 | Damping sound-insulating spraying mortar |
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| CN201510464615.4A CN106396529A (en) | 2015-08-03 | 2015-08-03 | Damping sound-insulating spraying mortar |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863216A (en) * | 2018-07-10 | 2018-11-23 | 中冶武汉冶金建筑研究院有限公司 | A kind of sprayable inorganic foamed thermal insulation mortar |
| CN109824322A (en) * | 2019-03-19 | 2019-05-31 | 珠海市荣烁绿色建筑节能科技有限公司 | A kind of pugging and preparation method thereof |
| CN110627420A (en) * | 2019-10-16 | 2019-12-31 | 重庆苏港建设工程有限公司 | Thermal insulation mortar for building wall and preparation method thereof |
| CN110734258A (en) * | 2019-11-21 | 2020-01-31 | 中国十七冶集团有限公司 | floor heat-preservation sound-insulation mortar prepared by utilizing EVA waste material |
| CN111620661A (en) * | 2020-06-19 | 2020-09-04 | 广东思创建筑材料科技有限公司 | Self-leveling mortar with waterproof and sound insulation functions and construction method |
| CN111747710A (en) * | 2020-07-10 | 2020-10-09 | 广西壮族自治区建筑科学研究设计院 | Sound insulation mortar with construction waste recycled fine aggregate and industrial waste |
| CN111978048A (en) * | 2020-09-04 | 2020-11-24 | 海南瑞宸新型建材有限公司 | Floor sound insulation mortar and preparation method thereof |
| CN112322082A (en) * | 2020-10-30 | 2021-02-05 | 惠州市金卓越实业有限公司 | Novel damping sound-insulation coating and preparation method thereof |
| CN112374809A (en) * | 2020-10-30 | 2021-02-19 | 惠州市金卓越实业有限公司 | Ultrathin sound insulation mortar for impact sound of building floor slab |
| CN113150621A (en) * | 2021-04-22 | 2021-07-23 | 广东博智林机器人有限公司 | Sound insulation coating, preparation method thereof and floor slab member |
| CN114477922A (en) * | 2022-03-29 | 2022-05-13 | 湘西宏远新型建材有限公司 | Floor filling and leveling mortar for civil building decoration and preparation method thereof |
| CN116023091A (en) * | 2022-12-12 | 2023-04-28 | 振中建设集团有限公司 | Regenerated rubber thermal insulation mortar and preparation process and application thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863216B (en) * | 2018-07-10 | 2021-04-27 | 中冶武汉冶金建筑研究院有限公司 | Inorganic foaming thermal insulation mortar capable of being sprayed |
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| CN109824322A (en) * | 2019-03-19 | 2019-05-31 | 珠海市荣烁绿色建筑节能科技有限公司 | A kind of pugging and preparation method thereof |
| CN110627420A (en) * | 2019-10-16 | 2019-12-31 | 重庆苏港建设工程有限公司 | Thermal insulation mortar for building wall and preparation method thereof |
| CN110734258A (en) * | 2019-11-21 | 2020-01-31 | 中国十七冶集团有限公司 | floor heat-preservation sound-insulation mortar prepared by utilizing EVA waste material |
| CN111620661A (en) * | 2020-06-19 | 2020-09-04 | 广东思创建筑材料科技有限公司 | Self-leveling mortar with waterproof and sound insulation functions and construction method |
| CN111747710A (en) * | 2020-07-10 | 2020-10-09 | 广西壮族自治区建筑科学研究设计院 | Sound insulation mortar with construction waste recycled fine aggregate and industrial waste |
| CN111978048A (en) * | 2020-09-04 | 2020-11-24 | 海南瑞宸新型建材有限公司 | Floor sound insulation mortar and preparation method thereof |
| CN112322082A (en) * | 2020-10-30 | 2021-02-05 | 惠州市金卓越实业有限公司 | Novel damping sound-insulation coating and preparation method thereof |
| CN112374809A (en) * | 2020-10-30 | 2021-02-19 | 惠州市金卓越实业有限公司 | Ultrathin sound insulation mortar for impact sound of building floor slab |
| CN113150621A (en) * | 2021-04-22 | 2021-07-23 | 广东博智林机器人有限公司 | Sound insulation coating, preparation method thereof and floor slab member |
| CN114477922A (en) * | 2022-03-29 | 2022-05-13 | 湘西宏远新型建材有限公司 | Floor filling and leveling mortar for civil building decoration and preparation method thereof |
| CN116023091A (en) * | 2022-12-12 | 2023-04-28 | 振中建设集团有限公司 | Regenerated rubber thermal insulation mortar and preparation process and application thereof |
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Application publication date: 20170215 |